meibes Rossweiner logoplus Guia De Instalacion página 56

7. Display options
Code Fault description
C1 Basic parameter part of RAM damaged.
F1 Sensor short-circuit, sensor break.
F2 Battery lifetime is less than 400 days (Logoplus Radio only)
Return sensor registers a higher temperature than the flow sensor.
F3
Check whether the heat meter/temperature sensors are located in the correct lines.
F4 Flow sensors defective.
F5 Heat meter operating correctly. Communication is not possible to save power (too frequent reading).
Flow sensor is fitted against the flow direction. Install the meter in the correct flow direction (observe the direction
F6
arrow on the housing).
If faults C1, F1 or F4 exist, the meter assembly must be replaced.
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